Handrail bending die

Abstract

The utility model relates to the technical field of bending dies, in particular to a handrail bending die which comprises a base, a top plate is arranged at the upper end of the base, hydraulic rods are fixedly connected to the two sides of the upper end of the top plate, moving blocks are movably connected to the lower ends of the hydraulic rods, and pressing heads are fixedly connected to the lower ends of the moving blocks. Sliding grooves are formed in the two sides of the upper end of the base, sliding blocks are slidably connected into the sliding grooves, lower dies are fixedly connected to the upper ends of the sliding blocks, limiting blocks are fixedly connected to the opposite sides of the two lower dies, rectangular grooves are formed in the limiting blocks, and supporting rods are fixedly connected to the two sides of the lower end of a moving block. The lower die is divided into two parts, during working, when the clamping block moves downwards, the limiting block drives the lower die to move, and after the two lower dies are attached and bent, the clamping block moves upwards to separate the two lower dies, so that demolding is more convenient, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bending dies, in particular to an armrest bending die. Background Art

[0002] In the operation of machinery and the application in production and life, bending accessories or tools are often used. The bending of these accessories or tools is generally processed by special mechanical equipment and dies.

[0003] When processing the armrest, it is necessary to place the metal sheet at the upper end of the die, and then through the downward pressure of the upper die, the armrest is bent into shape. During this process, when the armrest is pressed, it is easy to get stuck inside the die, which makes it difficult for the staff to pick up the part and affects the processing efficiency. Content of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide an armrest bending die to solve the problem that when processing the armrest, it is necessary to place the metal sheet at the upper end of the die, and then through the downward pressure of the upper die, the armrest is bent into shape. During this process, when the armrest is pressed, it is easy to get stuck inside the die, which makes it difficult for the staff to pick up the part and affects the processing efficiency.

[0005] Based on the above purpose, the utility model provides an armrest bending die, which includes a base. The upper end of the base is provided with a top plate. Both sides of the upper end of the top plate are fixedly connected with hydraulic rods. The lower end of the hydraulic rod is movably connected with a moving block. The lower end of the moving block is fixedly connected with a pressing head. Both sides of the upper end of the base are provided with chutes. The inside of the chute is slidably connected with a slider. The upper end of the slider is fixedly connected with a lower die. Both sides of the opposite sides of the two lower dies are fixedly connected with limit blocks. The inside of the limit block is provided with a rectangular groove. Both sides of the lower end of the moving block are fixedly connected with support rods. The lower end of the support rod is fixedly connected with a block that matches the rectangular groove. The front end of the support rod is fixedly connected with a return spring.

[0006] Preferably, the upper end of the base is fixedly connected with a telescopic rod. The upper end of the telescopic rod is fixedly connected with a top block. The outside of the telescopic rod is sleeved with a first spring.

[0007] Preferably, the lower ends of the two hydraulic rods are jointly fixedly connected with a cross plate. Both sides of the lower end of the cross plate are fixedly connected with connecting rods. The lower end of the connecting rod is fixedly connected with a piston plate. The inside of the moving block is provided with a cavity. The inside of the pressing head is fixedly connected with an air pipe. The upper end of the air pipe is slidably connected with the inside of the piston plate.

[0008] Preferably, both sides of the lower end of the cross plate are fixedly connected with pulling rods, and the lower ends of the pulling rods are slidably connected to the inside of the moving block.

[0009] Preferably, both sides of the upper end of the base are fixedly connected with sliding rods, and the rod walls of the sliding rods are slidably connected to the inside of the moving block and the cross plate.

[0010] Preferably, air grooves are formed on both sides of the lower end of the cavity.

[0011] Advantages of the utility model:

[0012] 1. By dividing the lower die into two parts, when working, when the clamping block moves downward, the limiting block drives the lower die to move, so that the two lower dies are fitted together. After the bending work, the clamping block moves upward to separate the two lower dies, thus making the demoulding more convenient and improving the work efficiency.

[0013] 2. By providing the piston plate, when the cavity acts and the pressure head moves upward, the air pipe performs jetting work, thereby being able to prevent the workpiece from being stuck at the lower end of the pressure head and further improving the part removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only those of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic three-dimensional structure diagram of an embodiment of the present utility model;

[0016] Figure 2 It is a schematic cross-sectional structure diagram of an embodiment of the present utility model;

[0017] Figure 3 It is a schematic diagram of the limiting block of an embodiment of the present utility model;

[0018] Figure 4 It is a schematic diagram of the telescopic rod of an embodiment of the present utility model.

[0019] The labels in the figure are:

[0020] 1. Base; 2. Moving block; 3. Cross plate; 4. Top plate; 5. Hydraulic rod; 6. Sliding rod; 7. Lower die; 8. Clamping block; 9. Limiting block; 10. Rectangular groove; 11. Support rod; 12. Return spring; 13. Piston plate; 14. Pulling rod; 15. Air pipe; 16. Chute; 17. Slide block; 18. Top block; 19. First spring; 20. Connecting rod; 21. Pressure head; 22. Telescopic rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following further details the present utility model in conjunction with specific embodiments.

[0022] As Figures 1-4 shown, the present utility model provides an arm bending die, which includes a base 1. A top plate 4 is provided at the upper end of the base 1. Hydraulic rods 5 are fixedly connected to both sides of the upper end of the top plate 4. The hydraulic rods 5 are prior art and can perform telescopic actions. The lower end of the hydraulic rod 5 is movably connected to a moving block 2. The output end of the hydraulic rod 5 drives the moving block 2 to move up and down. A pressing head 21 is fixedly connected to the lower end of the moving block 2. The movement of the moving block 2 drives the pressing head 21 to move. Slide grooves 16 are formed on both sides of the upper end of the base 1. Sliders 17 are slidably connected to the inside of the slide grooves 16. The sliders 17 can move inside the slide grooves 16. An upper die 7 is fixedly connected to the upper end of the slider 17. Limit blocks 9 are fixedly connected to the opposite sides of the two upper dies 7. A rectangular groove 10 is provided inside the limit block 9. Support rods 11 are fixedly connected to both sides of the lower end of the moving block 2. A clamping block 8 matching the rectangular groove 10 is fixedly connected to the lower end of the support rod 11. The clamping block 8 can move inside the rectangular groove 10. A return spring 12 is fixedly connected to the front end of the support rod 11. By providing the return spring 12, the initial state of the clamping block 8 can be ensured, and it is inclined, so that when the clamping block 8 enters the rectangular groove 10, alignment can be ensured;

[0023] During operation, the workpiece to be bent is placed on the upper end of the upper die 7. At this time, the hydraulic rod 5 works to drive the moving block 2 to move downward. The moving block 2 drives the support rod 11 to move downward. The support rod 11 drives the clamping block 8 to move downward and enter the inside of the rectangular groove 10. Since the upper end position of the rectangular groove 10 is inclined, when the support rod 11 moves downward, the limit block 9 drives the upper die 7 to move. The upper die 7 can perform horizontal movement under the action of the slider 17 and the slide groove 16. When the moving block 2 moves downward, it drives the pressing head 21 to move downward. Before the pressing head 21 contacts the upper die 7, at this time, the two upper dies 7 are already in contact. The moving block 2 continues to move downward. At this time, the clamping block 8 moves vertically downward inside the rectangular groove 10, and thus no longer pushes the upper die 7. The workpiece is bent by the pressing head 21. After bending, the moving block 2 drives the clamping block 8 to move upward inside the rectangular groove 10, exerting an outward pulling force on the limit block 9, causing the two upper dies 7 to separate, so that the workpiece can be more easily separated from the upper die 7, improving the convenience of workpiece taking.

[0024] As Figure 3As shown, a telescopic rod 22 is fixedly connected to the upper end of the base 1. The upper end of the telescopic rod 22 is fixedly connected to a top block 18. A first spring 19 is sleeved outside the telescopic rod 22. When the pressure head 21 moves downward, it bends the workpiece and simultaneously presses the top block 18 to move downward. When the top block 18 moves downward, it compresses the first spring 19. When the moving block 2 drives the pressure head 21 to move upward, at this time, the top block 18 moves upward under the action of the first spring 19, thereby pushing the workpiece up and down, further making it more convenient to pick up the workpiece.

[0025] As Figure 2 As shown, the lower ends of two hydraulic rods 5 are jointly fixedly connected to a cross plate 3. Both sides of the lower end of the cross plate 3 are fixedly connected with connecting rods 20. The lower ends of the connecting rods 20 are fixedly connected with a piston plate 13. The piston plate 13 can move up and down inside the cavity. A cavity is formed inside the moving block 2. An air pipe 15 is fixedly connected inside the pressure head 21 for guiding air. The upper end of the air pipe 15 is slidably connected to the inside of the piston plate 13. Air grooves are formed on both sides of the lower end of the cavity. Pulling rods 14 are fixedly connected to both sides of the lower end of the cross plate 3. The cross plate 3 can drive the pulling rods 14 to move up and down. The lower ends of the pulling rods 14 are slidably connected to the inside of the moving block 2;

[0026] The output end of the hydraulic rod 5 drives the cross plate 3 to move downward. Under the action of the connecting rod 20, the piston plate 13 is located at the lowest position inside the cavity. At the same time, the pulling rod 14 moves downward relative to the moving block 2. When the bending work is completed, the hydraulic rod 5 drives the cross plate 3 to move upward. The cross plate 3 drives the pulling rod 14 and the connecting rod 20 to move upward. At this time, the pulling rod 14 moves upward relative to the moving block 2. At this time, the moving block 2 does not move. The connecting rod 20 drives the piston plate 13 to move up and down inside the cavity. The air pressure at the upper end of the piston plate 13 increases and exhausts air to the outside through the air pipe 15. The cross plate 3 continues to move upward. At this time, the upper end of the round block at the lower end of the pulling rod 14 contacts the moving block 2, thereby driving the moving block 2 to move upward. In this way, during the work, the workpiece can be blown, thereby avoiding the workpiece from getting stuck outside the pressure head 21 and further improving the part removal effect.

[0027] As Figure 1 As shown, sliding rods 6 are fixedly connected to both sides of the upper end of the base 1. The rod walls of the sliding rods 6 are slidably connected to the inside of the moving block 2 and the cross plate 3. By providing the sliding rods 6, the moving block 2 and the cross plate 3 move more stably.

[0028] Working principle: When working, place the workpiece to be bent on the upper end of the lower die 7. At this time, the hydraulic rod 5 works to drive the moving block 2 to move downward, and the moving block 2 drives the support rod 11 to move downward, and the support rod 11 drives the clamping block 8 to move downward and enter the interior of the rectangular groove 10. Since the upper end position of the rectangular groove 10 is inclined, when the support rod 11 moves downward, the limit block 9 drives the lower die 7 to move. Under the action of the slider 17 and the slide groove 16, the lower die 7 can move horizontally. When the moving block 2 moves downward, it drives the pressure head 21 to move downward. When the pressure head 21 has not yet contacted the lower die 7, the two lower dies 7 are already fitted, and the moving block 2 continues to move downward. At this time The clamping block 8 moves vertically downward inside the rectangular groove 10, and no longer pushes the lower die 7, and the workpiece is bent by the pressing head 21. After bending, the moving block 2 drives the clamping block 8 to move upward inside the rectangular groove 10, and exerts an outward pulling force on the limit block 9, so that the two lower dies 7 are separated, which can make the workpiece more easily separated from the lower die 7, thereby improving the convenience of taking out the workpiece. When the pressing head 21 moves downward, the workpiece is bent, and at the same time, the top block 18 is pressed downward. When the top block 18 moves downward, the first spring 19 is compressed. When the moving block 2 drives the pressing head 21 to move upward, the top block 18 moves upward under the action of the first spring 19, thereby pushing the workpiece up and down, further making it more convenient to take out the workpiece.

[0029] Furthermore, the output end of the hydraulic rod 5 drives the cross plate 3 to move downward, and under the action of the connecting rod 20, the piston plate 13 is located at the lowest end of the cavity, and the pulling rod 14 moves downward relative to the moving block 2. When the bending work is completed, the hydraulic rod 5 drives the cross plate 3 to move upward, and the cross plate 3 drives the pulling rod 14 and the connecting rod 20 to move upward. At this time, the pulling rod 14 moves upward relative to the moving block 2, and the moving block 2 will not move at this time. The connecting rod 20 drives the piston plate 13 to move up and down inside the cavity, and the air pressure at the upper end of the piston plate 13 increases, and the air is exhausted to the outside through the air pipe 15. The cross plate 3 continues to move upward. At this time, the upper end of the lower end round block of the pulling rod 14 contacts the moving block 2, thereby driving the moving block 2 to move upward. In this way, the workpiece can be blown during work, thereby preventing the workpiece from being stuck on the outside of the pressure head 21, further improving the removal effect.

[0030] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0031] The present utility model aims to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A handrail bending mold, comprising a base (1), characterized in that: The upper end of the base (1) is provided with a top plate (4), both sides of the upper end of the top plate (4) are fixedly connected with hydraulic rods (5), the lower end of the hydraulic rod (5) is movably connected with a moving block (2), the lower end of the moving block (2) is fixedly connected with a pressure head (21), both sides of the upper end of the base (1) are provided with sliding grooves (16), the interior of the sliding grooves (16) is slidably connected with a slider (17), the upper end of the slider (17) is fixedly connected with a lower mold (7), the opposite sides of the two lower molds (7) are fixedly connected with a limiting block (9), the interior of the limiting block (9) is provided with a rectangular groove (10), both sides of the lower end of the moving block (2) are fixedly connected with a support rod (11), the lower end of the support rod (11) is fixedly connected with a clamping block (8) matching the rectangular groove (10), and the front end of the support rod (11) is fixedly connected with a return spring (12).

2. The handrail bending mold according to claim 1, characterized in that: The upper end of the base (1) is fixedly connected to a telescopic rod (22), the upper end of the telescopic rod (22) is fixedly connected to a top block (18), and a first spring (19) is sleeved on the outer side of the telescopic rod (22).

3. The handrail bending mold according to claim 1, characterized in that: The lower ends of the two hydraulic rods (5) are commonly fixedly connected to a transverse plate (3), both sides of the lower end of the transverse plate (3) are fixedly connected to connecting rods (20), the lower ends of the connecting rods (20) are fixedly connected to a piston plate (13), a cavity is provided inside the moving block (2), an air pipe (15) is fixedly connected inside the pressure head (21), and the upper end of the air pipe (15) is slidably connected to the inside of the piston plate (13).

4. The handrail bending mold according to claim 3, characterized in that: Pull rods (14) are fixedly connected to both sides of the lower end of the transverse plate (3), and the lower end of the pull rod (14) is slidably connected to the inside of the moving block (2).

5. The handrail bending mold according to claim 1, characterized in that: Both sides of the upper end of the base (1) are fixedly connected with sliding rods (6), and the rod wall of the sliding rod (6) is slidably connected to the inside of the moving block (2) and the cross plate (3).

6. The handrail bending mold according to claim 3, characterized in that: Air grooves are provided on both sides of the lower end of the cavity.

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